netdev - Re: [linux-next:master] BUILD REGRESSION 088b9c375534d905a4d337c78db3b3bfbb52c4a0

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Date:   Thu, 7 Jul 2022 07:02:58 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     kernel test robot <lkp@...el.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
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Subject: Re: [linux-next:master] BUILD REGRESSION
 088b9c375534d905a4d337c78db3b3bfbb52c4a0

On Thu, Jul 07, 2022 at 10:08:33AM +0200, Greg KH wrote:

[ ... ]
> > 
> > Unverified Error/Warning (likely false positive, please contact us if interested):
> > 
> > arch/x86/events/core.c:2114 init_hw_perf_events() warn: missing error code 'err'
> > drivers/android/binder.c:1481:19-23: ERROR: from is NULL but dereferenced.
> > drivers/android/binder.c:2920:29-33: ERROR: target_thread is NULL but dereferenced.
> > drivers/android/binder.c:353:25-35: ERROR: node -> proc is NULL but dereferenced.
> > drivers/android/binder.c:4888:16-20: ERROR: t is NULL but dereferenced.
> > drivers/base/regmap/regmap.c:1996:1: internal compiler error: in arc_ifcvt, at config/arc/arc.c:9637
> > drivers/char/random.c:869:1: internal compiler error: in arc_ifcvt, at config/arc/arc.c:9637
> > drivers/firmware/arm_scmi/clock.c:394:1: internal compiler error: in arc_ifcvt, at config/arc/arc.c:9637
> > drivers/firmware/arm_scmi/powercap.c:376:1: internal compiler error: in arc_ifcvt, at config/arc/arc.c:9637
> > drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/vega10_powertune.c:1214:1: internal compiler error: in arc_ifcvt, at config/arc/arc.c:9637
> > drivers/gpu/drm/amd/display/dc/os_types.h: drm/drm_print.h is included more than once.
> > drivers/gpu/drm/bridge/ite-it66121.c:1398:1: internal compiler error: in arc_ifcvt, at config/arc/arc.c:9637
> > drivers/greybus/operation.c:617:1: internal compiler error: in arc_ifcvt, at config/arc/arc.c:9637
> 
> <snip>
> 
> When the compiler crashes, why are you blaming all of these different
> mailing lists?  Perhaps you need to fix your compiler :)
> 

To be fair, it says above "likely false positive, please contact us
if interested". Also, the 32-bit build errors _are_ real, and the NULL
dereferences in the binder driver are at the very least suspicious.

Guenter